Implement project picker keyboard shortcut and enhance feature management

- Added a new keyboard shortcut 'P' to open the project picker dropdown.
- Implemented functionality to select projects using number keys, allowing users to quickly switch between projects.
- Updated the feature list to include a new feature for project selection via keyboard shortcuts.
- Removed obsolete coding_prompt.md and added initializer_prompt.md for better session management.
- Introduced context management for features, enabling reading, writing, and deleting context files.
- Updated package dependencies to include @radix-ui/react-checkbox for enhanced UI components.

This commit enhances user experience by streamlining project selection and improves the overall feature management process.

🤖 Generated with Claude Code

.automaker/feature_list.json

@@ -5,5 +5,13 @@
     "description": "Can you add a shortcut key for O to open up a new project? To click on the open new project button that's in like the logo header area.",
     "steps": [],
     "status": "verified"
+  },
+  {
+    "id": "feature-1765300273422-a8ovhdlwq",
+    "category": "Core",
+    "description": "I want the ability to press P which will automatically select my projects drop down and show all my projects. And then for each one, put a hotkey in the left that says 12345 and selecting one of those with my keyboard should automatically select that project.\n",
+    "steps": [],
+    "status": "in_progress",
+    "startedAt": "2025-12-09T17:11:14.402Z"
   }
-]
+]